Thermodynamics Calculators
Last updated: September 2026
Convective Heat Transfer Calculator
Calculate convective heat transfer rate from a solid surface to a flowing fluid (or vice versa) using Newton's law of cooling.
Heat Conduction Calculator
Compute the steady-state heat flow rate through a flat material layer using Fourier's Law.
Otto Cycle Efficiency Calculator
Calculates the theoretical thermal efficiency of an Otto cycle engine from its compression ratio and fuel type.
Heat Pump COP Calculator
Calculate a heat pump's coefficient of performance (COP) from its heating capacity and power draw, with optional correction for defrost-cycle losses below 7 Β°C.
Steam Properties Calculator
Estimates steam enthalpy, entropy, or specific volume at specified pressure, temperature, and dryness fraction.
Coefficient of Performance Calculator
Calculates the Coefficient of Performance (COP) for heat pumps and refrigerators.
Psychrometric Calculator
Compute dew point, wet-bulb temperature, humidity ratio, or enthalpy from dry-bulb temperature, relative humidity, and pressure.
Work Done by Gas Calculator
Calculates the work done by an ideal gas during isothermal expansion or compression.
Steam Quality Calculator
Calculate the dryness fraction of wet steam to determine what proportion is vapor versus liquid water.
Adiabatic Process Calculator
Calculates the final temperature of an ideal gas after adiabatic compression or expansion.
Refrigeration COP Calculator
Calculate the Coefficient of Performance (COP) of a refrigeration or air-conditioning system from its cooling load and compressor work.
Steam Turbine Efficiency Calculator
Estimate the actual shaft power output of a steam turbine given inlet and outlet conditions and isentropic efficiency.
Combustion Air-Fuel Ratio Calculator
Determine the air-to-fuel mass ratio needed for complete combustion of methane, propane, gasoline, or diesel.